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n. 目录 1虎钳活动钳身的工艺分析及生产类型的确定1 1.1虎钳的用途1 1.2虎钳活动钳身的技术要求2 1.3审查虎钳活动钳身工艺性3 1.4确定虎钳活动钳身的生产类型3 2确定毛坯、绘制毛坯简图3 2.1选择毛坯3 2.2确定毛坯的尺寸公差和机械加工余量4 2.2.1公差等级4 2.2.2零件表面粗糙度4 2.2.3绘制虎钳活动钳身铸造毛坯简图5 3拟定虎钳活动钳身工艺路线5 3.1定位基准的选择5 3.1.1精基准的选择5 3.1.2粗基准的选择6 3.2表面加工方法的确定6 3.3加工阶段的划分7 3.4工序的集中和分散7 3.5工序顺序的安排7 3.6确定工艺路线8 4加工余量、工序尺寸和公差的确定9 4.120H9的孔切削用量的计算9 4.1.1钻孔工步9 4.1.2粗铰工步9 4.1.3精铰工步10 5夹具设计10 5.1设计要求10 5.2确定工件的定位方案10 5.2.1工件的定位基准及定位平面10 5.2.2定位原件的选用11 5.3确定刀具的对刀方案和引导方式11 5.3.1对刀装置11 5.3.2确定导向装置11 5.3.5确定夹紧机构11 5.4确定工件的夹紧方案11 6参考文献12